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2026-06-16 - 20:44
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Tue Jun 16, 2026 13:03:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163199237222,11cyclictest0-21swapper/2211:20:1715
163199237222,11cyclictest0-21swapper/2211:20:1615
164699222215,4cyclictest28873-21sshd11:46:5729
164699222215,4cyclictest28873-21sshd11:46:5629
164699222215,4cyclictest28873-21sshd11:46:5629
164999221206,12cyclictest0-21swapper/3812:36:1132
164999221206,12cyclictest0-21swapper/3812:36:1032
164999221206,12cyclictest0-21swapper/3812:36:1032
1633992198,103cyclictest0-21swapper/2409:10:1617
1633992198,103cyclictest0-21swapper/2409:10:1517
1633992198,103cyclictest0-21swapper/2409:10:1517
161599216203,10cyclictest3610-21CPU37
161599216203,10cyclictest3610-21CPU37
162999211208,2cyclictest0-21swapper/2008:20:1513
162999211208,2cyclictest0-21swapper/2008:20:1513
161999205173,25cyclictest0-21swapper/1110:02:413
161999205173,25cyclictest0-21swapper/1110:02:413
161999205173,25cyclictest0-21swapper/1110:02:413
164399203191,10cyclictest0-21swapper/3209:29:0926
164399203191,10cyclictest0-21swapper/3209:29:0926
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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